923、螺旋桨调速器是通过螺旋桨轮毂上的螺距改变机构,通过增加或减少螺旋桨的螺距来调节发动机或螺旋桨转速的装置

565、Apply the paint with a brush.

564、lf the shear pin breaks, do an inspection of the towbar.

563、The time intervals for the inspections vary with the types of aircraft. 检查的时间间隔因飞机的类型而异。

562、Guarantee that all means we use meet the requirement of airworthiness.

561.Check all parts for obvious defects in accordance with standard industry practices." 根据标准行业惯例检查所有部件是否有明显缺陷

560、Only approved persons are permitted to stay in this area.

559、Turbine engine tachometers usually measure speed as a percentage of the nominal maximum speed ofthe turbines.

558、All persons in this area must use a respirator.

557 、 The ozone converter prevents damage to the air separation module from oxidation of the membranematerial by ozone.

556、将溢流阀门拔动开关保持在打开位置，直到流出阀位置指示器显示完全打开。